The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
May. 08, 2018
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Joel Turchi, Gagnac sur Garonne, FR;
Radim Mlcousek, Frenstat pod Radhostem, CZ;
Lukas Olivik, Loukov, CZ;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
In one form, a power factor correction (PFC) controller, comprising includes a regulation circuit, a dead-time detection circuit, and a pulse width modulator. The regulation circuit provides a control voltage in response to a feedback voltage received at a feedback input terminal, wherein the feedback voltage is proportional to an output voltage. The dead-time detection circuit has an input coupled to a zero current detection input terminal, and an output for providing a dead-time signal. The pulse width modulator is responsive to the control voltage and the dead-time signal to provide a drive signal that controls conduction of a switch to improve a power factor of an offline converter, wherein the pulse width modulator modulates both an on-time and a switching period of the drive signal using the dead-time signal in a discontinuous conduction mode.